A plastic processing pelletizer

Abstract

The utility model discloses a kind of plastic processing granulator, including main body, the lower portion of main body is provided with support leg, the upper portion of support leg is provided with motor placing chamber, the upper portion of motor placing chamber is provided with feed inlet, the right side of feed inlet is provided with discharge port, the rear of discharge port is provided with transmission chamber, and the front end of transmission chamber is installed with cutting device.The plastic processing granulator, equipment layout is reasonable, process is coherent, reduces jam, and support is stable and reduces noise and loss.Cutting device roller cooperation, granulation precision is uniform;Motor transmission system reduces impact, and guarantees synchronization efficient.Feed inlet and discharge port block material, guide device improves efficiency.Transmission connection is stable, easy to maintain, reduce cost and reduce consumption.

Description

Technical Field

[0001] This utility model relates to the field of plastic particle processing technology, specifically a plastic pelletizing machine. Background Technology

[0002] Plastic pellets, or granular plastic materials, occupy an important position in modern industrial production due to their diverse properties and wide applicability. This material is extremely diverse, generally classified into more than 200 major categories, and if further subdivided, the number can reach several thousand. Among the many types of plastic pellets, the most common are general-purpose plastics, engineering plastics, and specialty plastics.

[0003] The production process of plastic pellets follows a relatively fixed procedure. First, the raw materials are fed into an extruder, where they are heated and extruded to form continuous linear plastic. Next, the extruded linear plastic enters a cooling device for cooling, and then passes through a drying device to remove surface moisture, ensuring the linear plastic is dry. After cooling and drying, the linear plastic is conveyed to a pelletizer for pelletizing, ultimately forming uniformly sized plastic pellets.

[0004] However, existing pelletizers have several drawbacks in actual cutting processes. Firstly, during cutting, the high-speed rotating blades contact the linear plastic strips, causing the resulting plastic pellets to fly out due to inertia. This not only wastes raw materials but also poses a safety hazard to operators and increases the difficulty of cleaning the workshop, affecting the cleanliness of the production environment. Secondly, if the plastic strips become stuck in the pelletizing device due to uneven hardness, thickness, or other reasons, the motor will be subjected to excessive load, potentially leading to motor burnout. Once the motor burns out, not only is it necessary to stop the production line for repairs, but often the entire related equipment needs to be replaced. This not only increases production costs but also severely impacts production schedules, causing significant losses to the company. Utility Model Content

[0005] The purpose of this invention is to provide a plastic processing pelletizer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a plastic processing pelletizer, comprising a main body, a support leg disposed below the main body, a motor placement chamber disposed above the support leg, a feed inlet disposed above the motor placement chamber, a discharge outlet disposed to the right of the feed inlet, a transmission chamber disposed behind the discharge outlet, and a cutting device installed at the front end of the transmission chamber.

[0007] Preferably, the cutting device includes a pressure roller, a cutting roller is mounted on the right side of the pressure roller, and a transmission device is mounted on the rear end of the cutting roller.

[0008] Preferably, the transmission device includes a drive motor, an electromagnetic coupling device is mounted on the output shaft of the drive motor, a transmission disc is mounted on the electromagnetic coupling device, a central shaft disc is mounted above the transmission disc, and a synchronization disc is mounted on the right side of the central shaft disc.

[0009] Preferably, a transmission gear is provided at the rear end of the central shaft disk and the synchronization disk, and a synchronization gear is installed above the transmission gear.

[0010] Preferably, the transmission device is connected to the central shaft on the pressure roller and the cutting roller via a coupling of the rotating shaft.

[0011] Preferably, both the inlet and outlet are provided with baffles at their upper ends, and guide plates are provided below to guide the material direction.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. From an overall structural perspective, this plastic processing pelletizer features a clear and rational layout of its components. The main body, support legs, motor housing, feed inlet, discharge outlet, transmission chamber, and cutting device are sequentially arranged, forming a complete and continuous processing flow. This layout ensures a smooth path for materials from feeding to cutting and then to discharging, reducing the risk of material stagnation and blockage during transmission and improving processing continuity. The support legs provide stable support for the equipment, ensuring its stability during operation and reducing noise and component wear caused by vibration. The cutting device design is a major highlight. The cooperation between the pressure roller and the cutting roller allows for stable pressing of the material before precise cutting, effectively preventing material deviation and shaking during cutting, and improving the uniformity and accuracy of pelletizing. The drive motor, through an electromagnetic coupling device, transmission disc, central shaft disc, synchronous disc, and other components, forms a series of... The power transmission is achieved through a series of components. The use of an electromagnetic coupling device reduces the impact during motor startup, protects the motor and other transmission components, and extends the service life of the equipment. The coordinated work of multiple transmission discs and gears ensures the synchronous operation of the pressure roller and the cutting roller, further improving the cutting effect. The baffles and guide plates at the feed and discharge ports are also very practical. The baffles prevent material from spilling during feeding and discharging, reducing raw material waste and environmental pollution, while the guide plates guide the material to be transported in a preset direction, ensuring that the material accurately enters the processing stage and improving the efficiency of material transport. The transmission device is connected to the central shaft of the pressure roller and the cutting roller through a rotating shaft coupling. This connection method makes the power transmission more stable and efficient, reduces power loss, improves the working efficiency of the equipment, and at the same time, facilitates the installation, commissioning, and maintenance of the equipment, reducing the failure rate and maintenance costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of this utility model.

[0017] In the diagram: 1. Main body; 2. Support leg; 3. Motor housing; 4. Feed inlet; 5. Discharge outlet; 6. Transmission chamber; 7. Transmission device; 8. Cutting device; 9. Pressing roller; 10. Cutting roller; 11. Drive motor; 12. Electromagnetic coupling device; 13. Transmission disc; 14. Central shaft disc; 15. Synchronizing disc; 16. Transmission gear; 17. Synchronizing gear; 18. Central shaft. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example: Please refer to Figure 1 This utility model provides a technical solution: a plastic processing pelletizer, including a main body 1, a support leg 2 is provided below the main body 1, a motor placement chamber 3 is provided above the support leg 2, a feed inlet 4 is provided above the motor placement chamber 3, a discharge outlet 5 is provided to the right of the feed inlet 4, a transmission chamber 6 is provided behind the discharge outlet 5, and a cutting device 8 is installed at the front end of the transmission chamber 6.

[0020] The cutting device 8 includes a pressing roller 9, a cutting roller 10 is installed on the right side of the pressing roller 9, and a transmission device 7 is installed at the rear end of the cutting roller 10.

[0021] In this embodiment, the pressure roller first compacts and positions the material to prevent material deviation during cutting and ensure cutting accuracy; the cutting roller then completes the cutting, and the two work together to make the processing flow continuous and efficient. Integrating the pressure and cutting functions, and placing the transmission device at the rear, reduces the overall space occupied by the equipment, making it suitable for compact production environments. The transmission device is directly linked to the cutting roller, reducing power loss and ensuring the timeliness and stability of the cutting action.

[0022] The transmission device 7 includes a drive motor 11, an electromagnetic coupling device 12 is mounted on the output shaft of the drive motor 11, a transmission disc 13 is mounted on the electromagnetic coupling device 12, a central shaft disc 14 is mounted above the transmission disc 13, and a synchronization disc 15 is mounted on the right side of the central shaft disc 14.

[0023] In this embodiment, the electromagnetic coupling device enables a flexible connection between the motor and the load, reducing impact during startup, minimizing wear on the motor and mechanical components, and extending equipment life. The multi-stage transmission discs (transmission disc, central shaft disc, and synchronization disc) work together to precisely transmit power, ensuring the synchronization of cutting, pressing, and other actions, and avoiding processing defects caused by power transmission errors. Through the characteristics of the electromagnetic coupling device, power output can be adjusted within a certain range to adapt to the processing needs of materials of different thicknesses and hardnesses, improving the equipment's versatility.

[0024] Among them, the rear end of the central shaft disk 14 and the synchronous disk 15 is provided with a transmission gear 16, and the synchronous gear 17 is installed above the transmission gear 16.

[0025] In this embodiment, the gear meshing transmission exhibits high stability, ensuring strict consistency in the rotational speed and direction of the central shaft disc and the synchronous disc, further enhancing the coordination of the movements of each component. The gear transmission also boasts high efficiency, reducing energy loss and improving the energy efficiency of the equipment. Furthermore, the output speed can be flexibly adjusted through gear ratio design to adapt to different processing speed requirements.

[0026] The transmission device 7 is connected to the central shaft 18 on the pressure roller 9 and the cutting roller 10 via a coupling of the rotating shaft.

[0027] In this embodiment, the coupling effectively compensates for installation deviations between the two shafts, ensuring stable power transmission and avoiding vibration or abnormal noise caused by installation errors. The coupling is a detachable connection, allowing for quick disassembly and separation when the pressure rollers, cutting rollers, or transmission device require maintenance, reducing maintenance difficulty and downtime. Different types of couplings can be selected according to requirements, balancing transmission accuracy and buffering performance to adapt to different operating conditions of the equipment.

[0028] Both the inlet 4 and the outlet 5 are equipped with baffles at their upper ends, and guide plates are provided below to guide the material direction.

[0029] In this embodiment, the lower guide plate forcibly guides the material along a preset path into and out of the equipment, preventing the material from tilting due to its own weight or external force, ensuring consistent feeding and discharging directions, and improving processing continuity. The upper baffle plate can prevent the material from shifting upwards or splashing due to vibration or high-speed movement, preventing material from falling and causing waste, while also reducing the risk of operators being accidentally injured by flying debris.

[0030] Working principle: In actual use, firstly, the drive motor 11 serves as the power source for the entire device. Its output shaft transmits the generated torque to the electromagnetic coupling device 12 installed at the shaft end, causing the electromagnetic coupling device 12 to rotate at high speed. At this time, the electromagnetic coupling device 12 utilizes the magnetic coupling effect between its internal magnets to form a non-contact power connection, smoothly driving the corresponding transmission disc 13 to rotate synchronously. This magnetic transmission method not only reduces wear caused by mechanical contact but also provides a protection function by magnetically disengaging in case of overload.

[0031] During the rotation of the transmission disc 13, a flexible transmission connection is established with the central shaft disc 14 through a belt surrounding its edge. The belt, under tension, stably transmits torque, enabling the central shaft disc 14 to obtain continuous rotational power. It is worth noting that the central shaft disc 14 plays a crucial power transfer role here. On the one hand, it receives power from the transmission disc 13, and on the other hand, it drives the synchronous disc 15 to rotate through another set of belts, ensuring that power can be distributed to subsequent actuators.

[0032] As the central shaft disk 14 and the synchronous disk 15 operate synchronously, the transmission gears 16 connected to each of them are activated and begin to rotate. Since the synchronous gear 17 and the transmission gear 16 maintain a tight tooth meshing state, under the mechanical constraint of gear meshing, the synchronous gear 17 will move synchronously with the transmission gear 16, but in completely opposite directions.

[0033] Driven by the aforementioned gear transmission, the pressure roller 9 and the cutting roller 10 begin to operate in tandem: the pressure roller 9 provides continuous feed pressure, while the cutting roller 10, with its evenly distributed blades on its outer circumference, prepares to perform the cutting action. When the operator feeds the plastic rod into the device through the feed port 4, the plastic rod, gripped and conveyed by the pressure roller 9, steadily advances along the preset feed channel until it reaches the working area of ​​the cutting roller 10. At this point, the high-speed rotating cutting roller 10, through the contact between the blades and the plastic rod, precisely divides it into uniformly sized plastic granules, completing the entire processing flow.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic processing pelletizer, comprising a main body (1), characterized in that: A support leg (2) is provided below the main body (1), a motor placement chamber (3) is provided above the support leg (2), a feed inlet (4) is provided above the motor placement chamber (3), a discharge outlet (5) is provided to the right of the feed inlet (4), a transmission chamber (6) is provided behind the discharge outlet (5), and a cutting device (8) is installed at the front end of the transmission chamber (6).

2. The plastic processing pelletizer according to claim 1, characterized in that: The cutting device (8) includes a pressing roller (9), a cutting roller (10) is installed on the right side of the pressing roller (9), and a transmission device (7) is installed at the rear end of the cutting roller (10).

3. A plastic processing pelletizer according to claim 2, characterized in that: The transmission device (7) includes a drive motor (11), an electromagnetic coupling device (12) is mounted on the output shaft of the drive motor (11), a transmission disc (13) is mounted on the electromagnetic coupling device (12), a central shaft disc (14) is mounted above the transmission disc (13), and a synchronization disc (15) is mounted on the right side of the central shaft disc (14).

4. A plastic processing pelletizer according to claim 3, characterized in that: The central shaft disk (14) and the synchronous disk (15) are provided with a transmission gear (16) at their rear ends, and a synchronous gear (17) is installed above the transmission gear (16).

5. A plastic processing pelletizer according to claim 2, characterized in that: The transmission device (7) is connected to the central shaft (18) on the pressure roller (9) and the cutting roller (10) via a coupling of the rotating shaft.

6. A plastic processing pelletizer according to claim 1, characterized in that: Both the inlet (4) and outlet (5) are equipped with baffles at their upper ends, and guide plates are provided below them to guide the material direction.

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